I think the poetic device being used is imagery, because it is describing what it looks like.
Answer:
The French colonization of Indochina changed Vietnamese culture and upset the people's balance of life, along with leading to drastic changes to the country as a whole. They altered people's' roles in society. Vietnamese were eventually forced to adopt French ideals.
Explanation:
Serfs, also known as peasants, were the lowest class of citizen in feudal societies. They were allowed to live on land own by Lords in return for labor, which was practically slavery.